The following are TimeCenter technical reports with author(s) at the University of Arizona.

Stephen W. Thomas, Richard T. Snodgrass, and Rui Zhang, "tBench: Extending XBench with Time, TimeCenter TR 92, 68 pges, December 2010, revised March 2013 [.pdf]

Faiz Currim, Sabah Currim, Curtis E. Dyreson, Shailesh Joshi, Richard T. Snodgrass, Stephen W. Thomas, and Eric Roeder, "tXSchema: Support for Data- and Schema-Versioned XML Documents," TimeCenter TR 91, 279 pages, September 2009. [.pdf]

Christian S. Jensen and Richard T. Snodgrass (Editors), "Temporal Database Entries for the Springer Encyclopedia of Database Systems," TimeCenter TR 90, 345 pages, May, 2008. [.pdf]

Shailesh Joshi, "tXSchema - Support for Data- and Schema-Versioned XML Documents," TimeCenter TR 89, August, 2007. [.pdf]

Kyri Pavlou and Richard. T. Snodgrass, "The Pre-images of Bitwise AND Functions in Forensic Analysis,'' TimeCenter TR 87, October, 2006. [.pdf]

Paolo Terenziani, Richard T. Snodgrass, A. Bottrighi, M. Torchio, and G. Molino, "Extending Temporal Databases to Deal with Telic/Atelic Medical Data," TimeCenter TR-85, May 2006 [.pdf]

B. Urgun, Curtis E. Dyreson, Nick Kline, Jessica K. Miller, Richard T. Snodgrass, Michael D. Soo, and Christian S. Jensen, "Integrating Multiple Calendars using tZaman," TimeCenter TR-80, August 2004. [.pdf]

Ines Fernando V. Lopez, Richard T. Snodgrass, and Bongki Moon, "Spatiotemporal Aggregate Computation: A Survey," TimeCenter TR-77, January 2004 [.pdf]

Mani Sethuraman, "Implementation and Evaluation of a Partitioned Store for Transaction-Time Databases," TimeCenter TR-76, December 2003 [.pdf]

Haitao Liu, "τDOM: A Time-Aware API for Managing Temporal XML Documents," TimeCenter TR-74, October 2003 [.pdf]

Vijay Khatri, Sudha Ram, and Richard T. Snodgrass, "Augmenting Database Design-Support Environments to Capture the Spatio-Temporal Data Semantics, "TimeCenter TR-73, August 2003 [.pdf]

Dengfeng Gao and Richard T. Snodgrass, "Syntax, Semantics, and Query Evaluation of the τXQuery Temporal XML Query Language," TimeCenter TR-72, March 2003 [.pdf]

Dengfeng Gao, Christian S. Jensen, Richard T. Snodgrass, and Michael D. Soo, "Join Operations in Temporal Databases," TimeCenter TR-71, October 2002 [.pdf]

Vijay Khatri, Sudha Ram and Richard T. Snodgrass, "ST USM: Bridging the Semantic Gap with a Spatio-Temporal Conceptual Model," TimeCenter TR-64 , November 2001 [.pdf]

Wei Li, Dengfeng Gao, and Richard T. Snodgrass, "Skew Handling Techniques in Sort-Merge Join," TimeCenter TR-62, June 2001 [.ps.gz] [.pdf]

Paolo Terenziani and Richard T. Snodgrass, "Reconciling Point-based and Interval-based Semantics in Temporal Relational Databases: A Proper Treatment of the Telic/Atelic Distinction," TimeCenter TR-60, June 2001 [.pdf]

Giedrius Slivinskas, Christian S. Jensen, and Richard T. Snodgrass, "Adaptable Query Optimization and Evaluation in Temporal Middleware," TimeCenter TR-56, March 2001 [.ps.gz] [.pdf]

Vijay Khatri, Sudha Ram, Richard T. Snodgrass, and Grady O'Brien, "Supporting User-defined Granularities and Indeterminacy in a Spatiotemporal Conceptual Model," TimeCenter TR-55, April 2001 [.pdf] For printing on Unix, specify "Level 2 Only" in the print dialog box in acrobat reader.

Giedrius Slivinskas, Christian S. Jensen, and Richard T. Snodgrass, "A Foundation for Conventional and Temporal Query Optimization Addressing Duplicates and Ordering," TimeCenter TR-49, February 2000 [.ps.gz] [.pdf]

Kristian Torp, Christian S. Jensen, and Richard T. Snodgrass, "Modification Semantics in Now-Relative Databases," TimeCenter TR-43, September 1999 [.ps.gz] [.pdf]

Bongki Moon, Jose A. G. Gendrano, Minseok Park, Richard T. Snodgrass, Bruce C. Hwang, and Jim M. Rodrigue, "Parallel Aggregations for Temporal Databases," TimeCenter TR-42, September 1999 [.ps.gz][.pdf]

Nick Kline, Jie Li and Richard Snodgrass, "Specifying Multiple Calenders, Calendric Systems, and Field Tables and Functions in TimeADT," TimeCenter TR-41, May 1999 [.ps.gz] [.pdf]

Jose A. G. Gendrano, R. Shah, Richard T. Snodgrass and Jun Yang,  "University Information System (UIS) Dataset,"    TimeCenter CD-1, 1998.

Curtis E. Dyreson, William S. Evans, Hong Lin, and Richard T. Snodgrass, "Efficiently Supporting Temporal Granularities," TimeCenter TR-31, September, 1998 [.ps.gz] [.pdf]

Richard T. Snodgrass, "Managing Temporal Data: A Five-Part Series," TimeCenter TR-28, September, 1998 [.ps.gz][.pdf]

Hong Lin, "Efficient Convertion Between Temporal Granularities," TimeCenter TR TR-19, July 1997 [.ps.gz] [.pdf]

Christian S. Jensen and R. T. Snodgrass, "Temporal Data Management," TimeCenter TR-17, June, 1997 [.ps.gz][.pdf]

Vassilis J. Tsotras, Christian S. Jensen, and Richard T. Snodgrass, "A Notation for Spatiotemporal Queries," TimeCenter TR-10, April, 1997 [.ps.gz][.pdf]

Michard H. Böhlen, Richard T. Snodgrass, and Michael D. Soo, "Coalescing in Temporal Databases," TimeCenter TR-9, April, 1997 [.ps.gz] [.pdf]

Richard T. Snodgrass, Michael H. Böhlen, Christian S. Jensen, and Andreas Steiner, "Transitioning Temporal Support in TSQL2 to SQL3," TimeCenter TR-8, April, 1997 [.ps.gz][.pdf]

Curtis E. Dyreson and R. T. Snodgrass, "Supporting Valid-time Indeterminacy," TimeCenter TR-7, April, 1997 [.ps.gz][.pdf]

John Bair, Michael H. Böhlen, Christian S. Jensen, and Richard T. Snodgrass, "Notions of Upward Compatibility of Temporal Query Languages," TimeCenter TR-6, April, 1997 [.ps.gz][.pdf]

Kristian Torp, Christian S. Jensen, and Richard T. Snodgrass, "Stratum Approaches to Temporal DBMS Implementation," TimeCenter TR-5, March, 1997 [.ps.gz] [.pdf]

Kristian Torp, Richard T. Snodgrass, and Christian S. Jensen, "Correct and Efficient Timestamping of Temporal Data," TimeCenter TR-4rev, October, 1998 [.ps.gz] [.pdf] ]

Christian S. Jensen and Richard T. Snodgrass, "Semantics of Time-Varying Attributes and Their Use for Temporal Database Design," TimeCenter TR-1, January, 1997 [.ps.gz]

See TimeCenter publications for other TimeCenter publications.